<md-card *ngFor=" let mail of mails">

  <md-card-title><span>标题: </span>{{mail.title}}</md-card-title>
  <md-card-subtitle><span>发件人: </span>{{mail.from}}</md-card-subtitle>

  <md-card-content>
    {{mail.content}}
  </md-card-content>

  <md-card-actions>
    <button md-button>查看</button>
    <button md-button>待定动作</button>
  </md-card-actions>
</md-card>
